I second that - found it out the hard way when I purchased a Lenovo desktop with the Radeon HD 7450 upgrade only to find that the GPU is worse than the Intel HD 4000 that sits on the CPU itself - the Radeon HD 7450 is just a rebadged 6xxxx series that performs worse than the video card that came with my iMac (6970M w/ 2GB). I've since upgrade to a Sapphire 7750 w/ 2GB GDDR3 and made sure this time it is actually using the new architecture rather than it being rebadged crap.